Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
abudawud:4356 – Muḥammad b. al-ʿAlāʾ > Ḥafṣ > al-Shaybānī > Abū Burdah Bihadhih al-Qiṣṣah > Faʾutī Abū Mūsá Birajul Qad Ārtad

A man who turned back from Islam was brought to Abu Musa. He invited him to repent for twenty days or about so. Muadh then came and invited him (to embrace Islam) but he refused. So he was beheaded.  

أبو داود:٤٣٥٦ – حَدَّثَنَا مُحَمَّدُ بْنُ الْعَلاَءِ حَدَّثَنَا حَفْصٌ حَدَّثَنَا الشَّيْبَانِيُّ عَنْ أَبِي بُرْدَةَ بِهَذِهِ الْقِصَّةِ قَالَ

فَأُتِيَ أَبُو مُوسَى بِرَجُلٍ قَدِ ارْتَدَّ عَنِ الإِسْلاَمِ فَدَعَاهُ عِشْرِينَ لَيْلَةً أَوْ قَرِيبًا مِنْهَا فَجَاءَ مُعَاذٌ فَدَعَاهُ فَأَبَى فَضُرِبَ عُنُقُهُ  

قَالَ أَبُو دَاوُدَ وَرَوَاهُ عَبْدُ الْمَلِكِ بْنُ عُمَيْرٍ عَنْ أَبِي بُرْدَةَ لَمْ يَذْكُرْ الاِسْتِتَابَةَ وَرَوَاهُ ابْنُ فُضَيْلٍ عَنِ الشَّيْبَانِيِّ عَنْ سَعِيدِ بْنِ أَبِي بُرْدَةَ عَنْ أَبِيهِ عَنْ أَبِي مُوسَى وَلَمْ يَذْكُرْ فِيهِ الاِسْتِتَابَةَ